Originally Posted by
joepilot50
The only time I really notice the fumes from #2 is with the tailwind.
Crosswind/headwind, I can be on the APU bleed with #2 running with no issue most of the time in terms of breathing engine exhaust.
40% restriction no longer exists in the AOM. It just now cautions us not to use excessive thrust in congested areas and look at the 7 pages if SET in the ramp isn't allowed.
AOM 5.3.1. There is absolutely a 40% restriction.
It used to be 35/40/45, they then changed it to a blanket <40% in ramp areas. Personally, I'm not going to go over that due to being able to defend my position. You hurt someone the first thing the chief and legal is going to ask is how did you clear the area behind the jet and how can you see behind it? There is no defense IMO.
Have you ever been jet blasted on the ramp? I was blown 50 feet into a blast fence, my glasses and vest blown off, my eyes in pain from the heat, due to a 320 SE taxing out of the ramp.
Originally Posted by
Judge Smails
The other thing is AA needs to upgrade the software to allow for SETWA (Single Engine Taxi Without APU) on the 320's. Single engine taxiing with the APU running doesn't do much to save fuel. We have a cultural problem here when it comes to fuel usage in general with tens of millions of $$ wasted every quarter.
Keep in mind the cultural problem is partially AA corporate's doing. They used to have an even lower max N1 on the ramp (35%) for many years only recently being upped which made it impossible to comply to SET out. In addition, the jet bridge air was absolute **** until major investment into it during the go-go years of 2016-2019. Finally, gate air units were slowly replaced but training was so bad on the ramp that kinked hoses resulted in weak air flow into the jet itself.
The the final straw for me was a DFW chief issuing an F4(?) message telling everyone to not start the APU until cabin temps hit 85*, while sitting in their DFW office that was so cold they had a space heater under their desk.
Also keep in mind that the many here flew the S80 (bulk of mainline fleet @ 385) which had **** poor APUs and just ran APUs 24/7 because even with them I routinely saw cabin temps over 100*.